Emil otto



(No Model.)

B. OTTO. SPIRIT BURNER.

No. 431,395. Patented July 1, 1890.

FIGB- whine/Mao amvo/Mioz KWZ W 'm: Monms PETERS cm, wow-mm), msnmerou, a. c,

UNITED STATES PATENT OFFICE.

EMIL OTTO, OF MAGDEBURG, PRUSSIA, GERMANY.

SPIRIT-BURNER.

SPECIFICATION forming part of Letters Patent No. 431,395, dated July 1, 1890.

Application filed March 21, 1890. Serial No. 3 14,795- (No model.) Patented in Germany March 28, 1889, 110.49.510-

To all whom it may concern:

Be it known that I, EMIL OTTO, a subject of the King of Saxony, residing at Magdeburg, in the Kingdom of Prussia, Germany, have invented n ewand usefullmprovem en ts in Spirit- Burners, (for which I have obtained Letters Patent in Germany, Mareh28, 1889, No.49,5l0,) whereof the following is a specification.

My invention relates to spirit-burners designed to be used for cooking purposes; and its object is to provide improved means for regulating andextinguishing the flame and for preventing waste of spirit by evaporation when the burner is not used.

In order that my invention may be fully understood, I will proceed to describe it with reference to ,the accompanying drawings, in which- Figure 1 is a vertical sectionof my improved spirit-burner on the line 1 1, Figs. 2 and 3. Fig. 2 is a vertical section thereof on the line 2 2, Figs. 1 and 3. Fig. 3 is a horizontal section of the same on the line 3 3, Figs. 1 and 2. Fig. 4 is a vertical section of the piston and adjacent parts, showing a modification.

The spirit which is to feed the lamp is contained in a reservoir (1, adapted to be closed tightly. c is a chamber connected to the former by a channel I), inwhich is inserted a cock I), the plug whereof can be turned by means of a knob Z1 so as to allow spirit to run from the reservoir a to the said chamber. From the edges of an aperture in the bottom of the latter extends upward a sleeve f, in which slides a piston h, preferably provided at the top with a projecting disk h. This piston may be raised and lowered by means of a rack k and the pinion arranged to be operated by the knob g. At the bottom of the sleeve f there is an orifice (l, in respect to which the piston h acts as a slide-valve, the said orifice being kept closed by the piston, except whenit is raised to the highest point of its course. The chamber 0 is contracted at the top by a plate z, having an aperture 2" of such form and size as that it may be closed by the top of the piston or its disk h.

Below the reservoir a and the chambers is arranged a chamber preferably divided into two superposed compartments Z and o by the inclined partition-wall m, having at its lower end the orifice a. At the bottom of the compartment 0 there is a cook 19.

When the burner is to be used, the piston h is lowered, so that it closes the orifice d and opens the aperture 6', and spirit is allowed to run from the reservoir a to the chamber 0 by opening the cock I). This spirit is then imbibed by a wick c',-with which the walls of.

the said chamber are lined. After the spirit has been lighted the flame may be regulated by adjusting the piston higher or lower. \N hen the flame is to be extinguished again, the cock bis closed and the piston is raised to close the aperture 2". At the same time the orifice dis uncovered by the piston, so that the spirit remainingin the chamber 0 runs through the said orifice into the compartment Z, and from there through the orifice n into the cool compartment 0, whence it may be drawn off by cook 19, to be returned to the reservoir a. By these means waste of spirit through evaporation is prevented.

Instead of establishing communication between the chamber 0 and compartment Z by an orifice to be controlled by the piston it, this orifice may be made in the bottom of the chamber a and provided with a valve (1', Fig. 4:, while the piston is furnished with an arm 7t, adapted to lift the valve when the piston is at the top of its course.

I claim as my invention-- 1. The combination of a burner-chamber 0, having at the top the aperture '5', a piston h, adapted to close the said aperture, means for raising and lowering the piston, and. a sleeve f, in which the piston slides, substantially as described.

2. The combination of a burner-chamber c,

. having at the top the aperture t", a piston 7L,

adapted to close the said aperture, means for raising and lowering the piston, a collectingcompartment 1 0, arranged below the chamber 0 and communicating with the latter by an orifice (I, and means in connection with the piston for opening and closing the said orifice, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

EMIL OTTO.

Witnesses:

Orro BLENCKE, W. EGGELING. 

